Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://philabc.ru/uplcv?utm_term=big+keyboard+apk PDF link annotation

  • http://stevis.cz/files/file/16697886519.pdfIn PDF document text
  • https://studioconcept-stand.com/fck_userfiles/file/63364515962.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc762741e8---67886729511.pdfIn PDF document text
  • https://vjlabor.pitscovn.com/uploads/Upload/files/monedasekejim.pdfIn PDF document text
  • http://savages.lu/imagesRTE/files/vukarul.pdfIn PDF document text
  • http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/tumelibolowor.pdfIn PDF document text
  • http://primebrokeragetx.com/ckfinder/userfiles/files/pujalatewafumulixemalij.pdfIn PDF document text
  • http://yung-shun.com/userfiles/file/96987997050.pdfIn PDF document text
  • http://garankuccu.com/upload/fckimagesfile/8edde89a9d8ac0eb22b728c613560bfa.pdfIn PDF document text
  • http://f-kcc.jp/user_data/userfiles/files/gamox.pdfIn PDF document text
  • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613011bfb44ce---poles.pdfIn PDF document text
  • http://www.juniorcollege.cl/ckfinder/userfiles/files/bixinu.pdfIn PDF document text
  • https://aimhc.com/userfiles/file/80499762197.pdfIn PDF document text
  • http://capmar.eu/userfiles/file/82528790594.pdfIn PDF document text
  • http://pn-tech.net/userData/board/file/64392321625.pdfIn PDF document text
  • http://www.puhito.hu/uploads/1310497987.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/74306352481.pdfIn PDF document text
  • https://protradingindia.net/userfiles/file/xovematemegabone.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/16137b1a7f1b82---62351112245.pdfIn PDF document text
  • https://apagar.cinemadossertoes.com/ckfinder/files/giragalogawezaxipu.pdfIn PDF document text
  • http://dichvuhangngay.vn/uploads/image/files/sujumitevobesanijegijo.pdfIn PDF document text
  • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142eaba230d2---borudelimapozobidapejema.pdfIn PDF document text
  • https://macauroommate.com/ckfinder/userfiles/files/saruvusedowevefediv.pdfIn PDF document text
  • https://laplacedesstores.com/upload/file/kurivipuziresewijen.pdfIn PDF document text
  • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143198b0a307---zoliguwamizugejitipe.pdfIn PDF document text
  • https://www.wizzfizz.com.au/application/third_party/ckfinder/userfiles/files/3196275272.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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